Patent Number: 7,612,218

Title: Process for production of heteroaryl-type boron compounds with iridium catalyst

Abstract: The present invention provides an economically and industrially superior simple process that enables the selective production of an aromatic heterocyclic monoboron compound and aromatic heterocyclic diboron compound at a satisfactory yield and in a desired ratio by reacting an aromatic heterocyclic compound and a boron compound in a single step under mild conditions while changing only the charged ratios of the raw materials. The present invention provides a production process of a heteroaryl mono- or diboron compound comprising an aromatic heterocyclic compound and a boron compound in the form of bis(pinacolate)diboron or pinacolate diborane in the presence of a iridium-containing catalyst and a ligand such as a bipyridyl ligand.

Inventors: Miyaura; Norio (Sapporo, JP), Ishiyama; Tatsuo (Sapporo, JP)

Assignee: Mitsubishi Rayon Co., Ltd.

International Classification: C07D 311/00 (20060101)

Expiration Date: 1/03/02017